Starter

How many words can you find in 10 minutes?

Learning Outcomes

Photosynthesis; Limiting factors

ALL Know the three main factors affecting the rate of photosynthesis

MOST Describe the effects of each on the rate of photosynthesis

SOME Apply knowledge to answer questions

Limiting Factors

TemperatureCarbon dioxide concentrationAmount of sunlightAmount of water

The effect of last three can be seen on the animation

Limiting Factors

HSW artificial environment

What are the benefits of artificially

manipulating the environment to grow

plants?

Products of photosynthesis

OXYGENGive a plant a

little of this …

and this …

And a little sunshine

and the plant gives us this …

Products of photosynthesis

Sunlight

ChlorophyllCarbon dioxide + Water Glucose + OxygenCarbon dioxide + Water Glucose + Oxygen

PHOTOSYNTHESIS

AEROBIC RESPIRATION

Needed for GROWTH, REPAIR and CELL ACITIVTIES

Sugar stored as starch

If a plant makes too much of this…..

…It can store it as STARCH

e.g potatoes and wheat plants

ISA Testing for starch

Read the article from gardeners news

• Using the information complete the table on page 12 (the functions of Magnesium and Nitrate and the effect on the plant)

Mineral Salts

Learning Outcomes

Photosynthesis; Limiting factors

ALL Know the three main factors affecting the rate of

photosynthesis

MOST Describe the effects of each on the rate of photosynthesis

SOME Apply knowledge to answer questions

Plenary

Answer the practice exam question